compton



PATENTED FEB. '16, 1904.

M. D. COMPTON.

GAS LAMP.

APPLIGATIOK Mum 1130.9, 1902.

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No. 752,039, PATENTED FEB. 16, 1904.

M. D. COMPTON.

' GAS LAMP.

APPLICATION FILED DEC. 9, 1902, N0 MODEL. 2 SHEETS-SHEET 2.

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W MasnMW AIYORNEK 1 .1: "aim; mans 00v, Prio'm-LrruQI wasnmsmx. 9 cv UNrrnfn STATES Patented February 16, 1904.

PATENT. OFFICE.

GAS-LAMP;

- SPECIFICATION forming part of Letters Patent No. 752,039, dated. February 16, 1904.

Application filed December 9,1902.

To all whom it may concern.-

Be it known that I, MELVIN D. CoMr-roN, a citizen of the United States, and a resident of New York city, in the county and State of New York, have invented a certain new and useful Gasfllamp, of which the following is a specification.

Objects of the present invention are to provideasightly, attractive, and neat lamp which shall also be simple and comparatively inexpensive in operation; to provide for adjusting the gas-supply of the burners to suit them to changes in gas-pressure; to make the pilotburners efiicient and durable, and to' so construct and arrange certain of the parts of the lamp as that they can be combined with different other parts, so as to produce, in efiect, different styles of lamps.

To these and other ends hereinafter stated the invention comprises the improvements to be presently described and finally claimed.

The nature, characteristic features, and

scope d'erstood from the following description, taken in connection with the accompanying draw ings, forming part hereof, and in which Figure 1 is a sectional view illustrating a lamp embodying features of the'invention.

Fig. 2 is a side elevational view of the same.

Fig. 3 is a top or plan View, partly in section, showing the base of the lamp upon an enlarged scale. Fig. 4 is a view, partly in plan and partly in section, illustrating the pilot-lights. Fig. 5 is a detached view illustrating means for regulating thesupply of gas, and Fig. 6 is a view of a lamp embodying a modification of the invention. Y

In the drawings, 1 is a gas-pipe, which may be connected in any suitable way, so as to be suspended from an overhead supply of gas. 2 is a fitting provided with a depending stem 3. This fitting is applied to the end of the pipe 1 and is provided with internal gasways,

which supply gas to the burners. As shown, the fitting 2 is generally H-shaped in plan and is fitted with two, burners on each of its arms, making four in all; but the number of burners is not important and may be increased or diminished. A gasway leads from the pipe 1 of the invention will be more fully unburners 7 and Serial No. 184,594. (No model.)

across the body of the fitting 2 and through each of its arms to the burners. The arms of the fitting are provided with valves having plugs, each fittedwith a diametric opening, so that every time the plug is turned a quarter of a revolution the gasway is alternately opened and closed. The plugs are provided with ratchet-wheels, and arms 4; are pivoted concentrically with the plugs and are 7 provided with spring-actuated pawls, which engage the teeth of the ratchet-Wheels. Furthermore, there are springs tending to shift the arms into their upward position, and there is astop for limiting the travel of the armsin each direction. chains Or hand-pulls, which extend down from the lamp, so that when one of these chains is pulled it turns the corresponding arm downward, and the pawl on that arm engages. the

The arms are provided with ratchet-wheel, and thus turns the plug of the valve. Upon the release of the hand-pull the arm is returned by the spring to its original position. Thus by simpl is possible to light or extinguish all of the lights or only so many of them as are controlled by one of the plug-valves.

5 is a spider-like globe-holder mounted on the end of the stem 3, for example, by means of a nut and threaded shank. This spider is provided at its top with a seat upon which rests the rim of the globe 6. The globe 6 is peculiar in that it is not provided at its top and bottom with flanges or curves, so that there are no reverse curves in its walls.

8 are mounted on the fitting 2 and are of the incandescent type. Each of them is therefore provided with a gas-check, As shown, the latter consists of a tubular piece 9, which is provided with a spider from which rises an arm that carries the valve member 10 and of a sleeve 11, having thread-and-screw connection with the base and provided with a seat 12, that cooperates with the valve member. There is a rotatable spindle 13, which extends downthrough the globe-support 5 and is held in suitable bearings, as shown. This spindle is provided with a pinion that meshes with a toothed wheel on the sleeve 11, so that the spindle can be turned from the outside of 'pulling the chain it The 1 the globe in order to adjust the supply of gas in accordance with the pressure of gas 1n the mains even while the lights are burning.

The pilot-lights are of the Bunsen order and gas at 16, so that the flames from the Bunsen burner are projected over the tops of the main burners. Thus these flames do not play upon the mantles. Each gasway 16 is in range of a needler 17, which serves to free it whenever it becomes clogged. This is necessary because pilot burners are likely to become clogged, and therefore ineflicient. The pilotlight burners are placed out of line with the main burners and in between them, so that the pilot-light burners are not subjected to undue heating. On top of the globe 6 there is a sleeve 18, which is fitted with a flange 19, that engages the top of the globe, and also with a skirt 20, which is ornamental and may be fitted with set-screws for a purpose that will be described hereinafter in connection with the modification of the invention shown in Fig. 6. As shown in Fig. 1, this sleeve is connected by arms with a cap 21, which is secured to the pipe 1 by means of a set-screw. Clearly the globe-support 5 may be removed and the globe slipped downward, so as to afford access to the burners. In removing the globe-support 5 provision is made for the spindle 13 to clear it, for example, by passing through the openings with which it is provided. If desired, the globe-holder 5 may be let alone andthe sleeve 18 raised, and thus access can be had to the burners and mantles in cases where the lower opening in the globe is of the proper size for this purpose.

In the modification of the invention shown in Fig. 6 the parts are as has been above described, except that the set-screws in the sleeve 20 are used to support a shade 22 by engaging.

a flange at its upper part in the usual way and the sleeve is connected by arms 23 with a collar 24:, provided with a set-screw arranged on the pipe 1, and above this there is a protector ing from the spirit thereofr 25, carried by holder 26, which is also fitted on the pipe 1 and provided with set-screws;

It will be obvious tothose skilled in the art to which the invention relates that modifications may be made in details without depart- Hence I do not limit myself to the precise construction and arrangement of parts set forth herein; but,

Having thus described the nature and objects of the invention, what I claim as new, and

desire to secure by Letters Patent, is

1. A gas-lamp comprising the combination of a gas-pipe, a fitting secured to the lower end thereof and provided with burners and with a depending stem, a spider-like globeholder detachably applied to said stem, a globe seated on the globe-holder, a sleeve arranged at the top of the globe, a collar movably fitted to the gas-pipe and connected with the sleeve and means for clamping and unclamping the collar and pipe in respect to each other, sub stantially as describe 2. The combination in a gas-lamp of a gaspipe, a fitting at the end of said pipe, incandescent burners on the fitting, and Bunsen burners projecting from said pipe above the incandescent burners and arranged out of alinement therewith, substantially as described.

3. The combination in a gas-lamp ofa gaspipe carrying incandescent burners and their gas-checks, a globe-holder carried by said pipe, a globe, a spindle extending through the globe- 'holder and connections between the spindle and gas-check whereby the latter may be adjusted without disturbing the globe, substantially as described. 7

1. A gas-lamp consisting of the combina 7 tion of a gas-pipe, a fitting provided with incandescent burners and arranged at the end of the gas-pipe, a housing surrounding said pipe and provided with shade-holding means and with independent globe-guiding means, and a collar and set-screws for adjustably connecting the housing and pipe, substantially as described.

In testimony whereof I have hereunto signed my name.

- MELVIN D. COMPTON. In presence of K. M. GILLIGAN, W. J. JACKSON. 

